G1625

G1625
Global Mixed-mode Technology
7-bit Programmable VCOM Reference
with Integrated Nonvolatile Memory
Features
General Description
„ Integrated Nonvolatile Memory to Store VCOM
The G1625 provides a programmable reference voltage for TFT-LCD panel VCOM adjustment. A 7-bit
digital-to-analog converter (DAC) detects current from
an external resistor-divider to create the VCOM reference voltage. This voltage is used as the input to a
high current drive voltage buffer.
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Setting
100 Programming Times
I 2C Interface
7-Bit, Adjustable Sink-Current Device
Resistor-Adjustable, Full-Scale Range
2.5V to 3.6V Logic Supply Range
7V to 18V Analog Supply Range
Protections:
Š Over Current Protection (OCP)
Š Over Temperature Protection (OTP)
TDFN3X3-8 Package
RoHS Compliant
G1625 includes one time programmable (OTP) memory to store the DAC code on the chip, eliminating the
need for external EEPROM. The chip supports up to
100 write operations to OTP memory. G1625 has an
I2C interface to set the VCOM reference voltage and
write into OTP memory.
Applications
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TFT-LCD Panels
Ordering Information
ORDER
NUMBER
MARKING
TEMP.
RANGE
PACKAGE
(Green)
G1625RD1U
DS961
-40°C to +85°C
TDFN 3X3-8
Note: RD: TDFN3X3-8
1: Bonding Code
U: Tape & Reel
Pin Configuration
G1625
OUT
1
AVDD
2
VCOM
3
GND
4
Thermal
Pad
8
SET
7
SCL
6
SDA
5
DVDD
TDFN3X3-8
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 0.2
Mar 25, 2013
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